Nylon net bag riprap device

By designing a nylon net bag rock-throwing device on a floating crane positioning vessel, and using a crane and floating cable system to control the lifting and flipping of the container, the problems of high cost, inaccuracy, and damage in existing construction methods have been solved, achieving efficient and accurate rock-throwing construction.

CN223850779UActive Publication Date: 2026-01-30YANGTZE RIVER YICHANG WATERWAY ENG BUREAU
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Patent Information

Application Number
CN202520652801.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-01-30
Estimated Expiration
2035-04-08

AI Technical Summary

Technical Problem

Existing methods for rock-throwing using nylon nets have drawbacks, including high construction costs, inconvenience, inaccurate throwing, and damage to the nylon nets. In particular, they are difficult to form an integral structure in underwater construction.

Method used

A nylon net bag stone-throwing device is designed and installed on a floating crane positioning vessel. The lifting of the container and the opening of the flap are controlled by the crane and the main and auxiliary cables of the floating crane system to realize the filling and throwing of the nylon net bag. This avoids the direct lifting damage of the nylon net bag and can accurately throw it.

Benefits of technology

It reduced construction costs, improved the accuracy of throwing, avoided the problems of nylon netting damage and accumulation leading to missed throwing, and formed a stable flexible protective structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a stone dumping device with a nylon net bag, which is arranged on a floating crane positioning ship, is connected with a crane on a ship body and comprises a device body, the nylon net bag, a main cable system and an auxiliary cable system, the device body comprises a box body and a nylon net bag, turning plates are rotationally hinged to the edges of the two opposite sides of the bottom of the box body respectively, and the crane controls the box body to ascend and descend through a floating crane main cable and controls the turning plates to be opened and closed through a floating crane auxiliary cable. The problems that the procurement cost of a professional caisson ship is higher than the transformation cost of the professional caisson ship, the professional caisson ship cannot be popularized and applied according to local conditions, and secondary hoisting of a nylon net bag can cause damage as the scheme of loading on land and transporting to a throwing ship for throwing are solved; the problems that due to the influence of water flow, throwing is not accurate, a nylon net bag rolls on a riverway and is damaged, block stones overflow and cannot form an integral structure, and accumulation or missing throwing occurs are solved through the scheme that the block stones are thrown into water through an excavator.
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Description

TECHNICAL FIELD

[0001] The utility model relates to underwater nylon net bag block stone throwing, concretely is a nylon net bag stone throwing device. BACKGROUND

[0002] Nylon net bag block stone is a common waterway regulation measure, uses the bag-shaped container (net bag) made of high-strength nylon woven net, fills the block stone in the inside, forms the flexible protection structure through the throwing mode, becomes the important supplement of traditional rigid protection by its flexibility and environmental adaptability, especially is applicable to ecological sensitive area and dynamic geological condition area.

[0003] The first method adopts the land filling and then hoists to the throwing boat, but the stone block is heavy, and the nylon net bag after filling is hoisted to the throwing position of the river channel from the throwing boat again, which can cause the damage of the nylon net bag, leading to the block stone from the nylon net bag, so that the integrity of the nylon net bag filled with enough block stone is lost.

[0004] The second method fills the block stone on the block stone transport ship, and throws into the water through the excavator.

[0005] The third method is the improvement of the first two methods, and the professional caisson ship is modified, the nylon net bag after filling is hoisted to the caisson on the caisson ship, and the bottom is opened after sinking to a certain depth to complete the throwing. CONTENT OF THE UTILITY MODEL

[0006] In view of the deficiencies in the prior art, the utility model provides a nylon net bag block stone throwing device, which solves the problems of high procurement cost and modification cost of the professional caisson ship, which cannot be promoted and applied according to local conditions, and the problems of the second hoisting of the nylon net bag causing damage, the inaccurate throwing due to water flow, the damage of the nylon net bag during rolling on the river channel, the overflow of the block stone, and the accumulation or missing throwing in the scheme of filling the block stone on the block stone transport ship and throwing into the water through the excavator.

[0007] To solve the above technical problems, the utility model adopts the technical scheme: a nylon net bag stone throwing device is arranged on a floating crane positioning ship and is connected with a crane arranged on a ship body, and is characterized by comprising a stone throwing device body, a floating crane main cable system and a floating crane auxiliary cable system;

[0008] The stone throwing device body comprises a rectangular coverless box body capable of accommodating the nylon net bag, the bottom of the box body is provided with a flap capable of being opened and closed by rotation, one side of the flap is hingedly connected to one side of the bottom of the box body, the floating crane main cable system comprises fixing ropes and a floating crane main cable, the fixing ropes are provided in plurality, one end of any one of the fixing ropes is fixedly connected to an edge position of the top of the box body, the other end is detachably connected to one end of the floating crane main cable, the other end of the floating crane main cable is fixedly connected to the crane, the floating crane auxiliary cable system comprises chains and a floating crane auxiliary cable, one end of the chain is detachably connected to the other side of the top of the flap away from the hinged part, the other end is detachably connected to one end of the floating crane auxiliary cable, the other end of the floating crane auxiliary cable is fixedly connected to the crane;

[0009] The crane controls the lifting and lowering of the box body by using the floating crane main cable and controls the opening and closing of the flap by using the floating crane auxiliary cable.

[0010] Further, the box body is a long rectangular coverless steel plate structure box, a partition plate is further arranged in the box body, the two ends of the partition plate are vertically and fixedly connected to the opposite side walls in the box body, and hooks are further arranged at the two ends of the top of the partition plate.

[0011] Further, the fixing ropes are provided in four, and one end of any one of the fixing ropes is fixedly connected to a corner of the top of the box body.

[0012] Further, the flap is provided with two pieces, which are hingedly connected to the opposite sides of the bottom of the box body, the two pieces of the flap abut against each other and can close the bottom of the box body when being rotated to a horizontal state, and chain links are further arranged on the side edge of the upper surface of the side of the two pieces of the flap which can approach and contact each other, and hooks are further fixedly arranged at the four corners of the top of the box body.

[0013] Further, rotating shafts are further rotatably arranged at the opposite sides of the bottom of the box body, the side edge of the flap is provided with corresponding rotating shaft seats, and the flap is rotatably connected to the rotating shafts through the rotating shaft seats.

[0014] Further, two chain links are symmetrically arranged on any one of the flaps with the center line of the flap as the center, the two chain links are arranged at the corner positions of the two side edges of the flap close to the inner wall of the box body, and the chains are provided in four, and one end of any one of the chains is detachably connected to one of the chain links.

[0015] Further, the fixing ropes, the chains and the chain links are all made of metal materials.

[0016] The technical principle of the utility model is: after the floating crane positioning ship and the block stone transport ship reach the designated area, the staff connects the free end of the fixing rope on the rectangular box body on the floating crane positioning ship to the floating crane main cable end, and detachably connects the two ends of one chain to the end of the floating crane auxiliary cable, then the staff sets the nylon net bag in the box body and unfolds, then the excavator transports the block stone to the box body, and manually assists the excavator to close the nylon net bag after the block stone fills the box body, at this time, the crane first lifts the floating crane auxiliary cable to tighten the chain connected to the flap, then the crane lifts the floating crane main cable to tighten the fixing rope, and the box body is lifted to the designated area, then the cycle operation is started. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described in connection with the drawings and implementation:

[0018] ATTACHED Figure 1 It is the front view of the utility model.

[0019] ATTACHED Figure 2 It is the side view of the utility model.

[0020] ATTACHED Figure 3 It is the top view of the utility model.

[0021] ATTACHED Figure 4 It is the working state of the utility model - filling.

[0022] ATTACHED Figure 5 It is the working state of the utility model - throwing.

[0023] In the above drawings:

[0024] 1, the stone throwing device body; 1-1, the box body; 1-2, the flap; 1-3, the pivot; 1-4, the hook; 1-5, the chain ring;

[0025] 2. Main cable system; 2-1. Fixing rope; 2-2. Floating crane main cable;

[0026] 3. Auxiliary cable system; 3-1. Chain; 3-2. Floating crane auxiliary cable;

[0027] 4. Nylon mesh bag;

[0028] 5. Excavator;

[0029] 6. Crane. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 To be continued Figure 5 The embodiments further illustrate the technical solutions of this utility model.

[0031] like Figures 1 to 5 As shown, to solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a nylon net bag stone-throwing device, which is installed on a floating crane positioning vessel and connected to a crane 6 installed on the hull, including a stone-throwing device body 1, a main cable system 2-2, and a secondary cable system 3; the stone-throwing device body 1 includes a rectangular open box 1-1 that can accommodate a nylon net bag 4, and rectangular flaps 1-2 are hinged and rotatably mounted on opposite sides of the bottom of the box 1-1. When the two flaps 1-2 are rotated to a horizontal state, they abut against each other and can close the bottom of the box 1-1. The upper surface edge of the side where the two flaps 1-2 can approach and contact each other is also provided with chain links 1-5. Hooks 1-4 are also fixedly installed at the four corners of the top of the box 1-1; the main cable system 2 includes a fixing rope 2-1 and a floating crane main cable 2- ... 2. At least four fixing ropes 2-1 are provided. One end of any one fixing rope 2-1 is fixedly connected to one of the corner positions on the top of the box body 1-1. The four fixing ropes 2-1 are fixed at the corner and serve to bear the load and control the direction. The other end is detachably connected to one end of the main floating cable 2-2. The other end of the main floating cable 2-2 is fixedly connected to the crane 6. The auxiliary cable system 3 includes a chain 3-1 and a floating auxiliary cable 3-2. There are two chains 3-1. One end of any one chain 3-1 is detachably connected to one of the chain links 1-5, and the other end is detachably connected to the floating auxiliary cable 3-2. The other end of the floating auxiliary cable 3-2 is fixedly connected to the crane 6. The crane 6 uses the main floating cable 2-2 to control the lifting and lowering of the box body 1-1, and uses the floating auxiliary cable 3-2 to control the opening and closing of the flap 1-2.

[0032] After the floating crane positioning vessel and the rock transport vessel reach the designated area, the workers connect the free end of the fixing rope 2-1, which is pre-set on the rectangular box 1-1 on the floating crane positioning vessel, to the end of the main floating cable 2-2 of the crane 6. The two ends of one chain 3-1 are detachably connected to the chain link 1-5 on one of the flaps 1-2 and the end of the secondary floating cable 3-2, respectively. The two ends of the other chain 3-1 are similarly connected to the link on the other flap 1-2 and the end of the secondary floating cable 3-2. Then, the workers place the nylon net bag 4 inside the box 1-1 and unfold it. Next, the excavator 5 transports the rocks into the box 1-1. After the rocks are filled, the workers manually assist the excavator 5 in closing the nylon net bag 4, completing the net bag filling.

[0033] At this point, crane 6 first lifts the auxiliary cable 3-2 of the floating crane and then tightens the chains 3-1 connected to the two flaps 1-2 respectively, ensuring that the flaps 1-2 remain closed when the box body 1-1 is lifted. Then, crane 6 lifts the main cable 2-2 of the floating crane and then tightens the four fixed ropes 2-1, lifting the box body 1-1 above the designated throwing area on the side of the floating crane. With manual traction and the cooperation of crane 6, the long side of the long rectangular box body 1-1 is adjusted to be perpendicular to the direction of water flow. Then, the main cable 2-2 of the floating crane is lowered to sink the box body 1-1 to the position above the riverbed where it needs to be thrown. Then, the auxiliary cable 3-2 of the floating crane is lowered and the chains 3-1 are loosened. Under the influence of gravity, the flaps 1-2 open to both sides, and the two nylon net bags of stones slowly slide down to the designed throwing area on the riverbed. Finally, the main floating crane cable 2-2 and the auxiliary floating crane cable 3-2 are raised together. After the container 1-1 is out of the water, the auxiliary floating crane cable 3-2 is raised further, and the chain 3-1 is tightened to close the flap 1-2 and seal the bottom of the container 1-1. The main floating crane cable 2-2 is then raised to lift the container 1-1 to the designated area, and then the cycle operation begins.

[0034] This solution avoids the common problems of damage to the nylon net bag 4 caused by hoisting the container 1-1 instead of the nylon net bag 4. Furthermore, the container 1-1 itself has its own weight, which, together with the nylon net bag 4 filled with stones, can withstand the impact of the water flow, allowing for a more accurate landing at the throwing position and preventing inaccurate throwing.

[0035] like Figure 1 As shown, the box 1-1 is further made of steel plate structure. The box 1-1 is also provided with a partition to form two partitions, which can be used to place two nylon net bags 4. The two ends of the partition are respectively vertically fixed to the opposite side walls inside the box 1-1. The top two ends of the partition are also provided with hooks 1-4 to be hung up and unfolded with the two adjacent nylon net bags 4.

[0036] like Figure 1 and Figure 2As shown in the drawings, further, the bottom of the box 1-1 is provided with rotating shafts 1-3 on opposite sides, and the side edges of the flap 1-2 are provided with corresponding rotating shaft seats, and the flap 1-2 is rotatably connected to the rotating shafts 1-3 through the rotating shaft seats.

[0037] As shown in the drawings, Figure 1 , Figure 2 and Figure 3 and Figure 5 As shown in the drawings, further, the nylon mesh bag 4 is provided with eyelets at the edges, and the eyelets can be hung on the hooks 1-4, and the nylon mesh bag 4 can be unfolded in the box 1-1 through the hooks 1-4. When filling, the nylon mesh bag 4 is unfolded and placed in the box 1-1 by hand, and the long end of the mesh bag eyelet is hung on the hook 1-4. After the excavator 5 fills the stones, the nylon mesh bag 4 is pulled and closed by hand to complete the filling.

[0038] As shown in the drawings, Figure 1 and Figure 5 As shown in the drawings, further, the box 1-1 can be selected according to the different sizes of the nylon mesh bag 4 to adapt to different throwing requirements.

[0039] As shown in the drawings, Figure 1 and Figure 2 and Figure 5 As shown in the drawings, further, two chain links 1-5 are symmetrically arranged on any one of the flaps 1-2 with the center line of the flap 1-2, and the two chain links 1-5 are arranged at the corner positions of the two side edges of the flap 1-2 close to the inner wall of the box 1-1. By arranging the chain links 1-5 at the corner positions close to the inner wall edge of the box 1-1, the chain 3-1 can be avoided from interfering with the filling during the filling of the stones.

[0040] As shown in the drawings, Figure 1 As shown in the drawings, further, the fixed rope 2-1, the chain 3-1 and the chain link 1-5 are all made of metal materials, such as the fixed rope 2-1 which can be made of steel wire rope, and the chain 3-1 and the chain link 1-5 which are made of rigid structure to ensure strength.

[0041] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A nylon mesh pocket riprap device, which is installed on a floating crane positioning vessel and connected with a crane installed on a hull, characterized in that: The device comprises a riprapping device body, a floating crane main cable system and a floating crane auxiliary cable system. The riprapping device body comprises a rectangular uncovered box capable of containing nylon mesh bags, and the bottom of the box is provided with a flap capable of being opened and closed by rotation. The floating crane main cable system comprises fixing ropes and a floating crane main cable. The floating crane auxiliary cable system comprises chains and a floating crane auxiliary cable. The crane controls the lifting and lowering of the box by the floating crane main cable and controls the opening and closing of the flap by the floating crane auxiliary cable.

2. A nylon mesh sock riprap device according to claim 1, wherein: The box is a long rectangular uncovered steel plate structure box, and a partition is further arranged in the box.

3. A nylon mesh sock riprap device according to claim 1, wherein: The fixing ropes are four in number, and one end of each fixing rope is fixedly connected to a corner of the top of the box.

4. A nylon mesh sock riprap device according to claim 1, wherein: The flap is provided with two pieces, and each piece is hingedly connected to a side of the bottom of the box.

5. A nylon mesh sock riprap device according to claim 4, wherein: The two pieces of flap abut against each other when they are rotated to a horizontal state and can close the bottom of the box.

6. A nylon mesh sock riprap device according to claim 4, wherein: The two pieces of flap are provided with chain links on the side surfaces close to each other.

7. A nylon mesh sock riprap device according to claim 4, wherein: The bottom of the box is further provided with rotating shafts, and the flap is provided with corresponding rotating shaft seats on the side edges. Two chain links are symmetrically arranged on each piece of flap along the center line of the flap. The fixing ropes, chains and chain links are all made of metal.